Hey Gopal,
it is an early instar "Black Swallowtail" caterpillar..
Very pretty..
Greetings
Susanne(SUE)

Oh my gosh! You have one very similar to mine! Mine is lime green with different colored balls and spikes all over! but this is definatly the same type! What have you found out about it! how big is yours?

Here is a link that might be useful: {{!gwi}}

Thanks again, Susanne!
hwillard123 - I think yours is pretty neat too! Wonder if the colored markings on the caterpillars are a reflection of the colors you would see in an adult. If so, what kind of butterfly would have such light colors? Here, the only ones I've seen with any blue in the adult would be the red spotted purple and the swallowtail.
I am interested in the identity of yours as well.

hwillard123
I believe you wierd worm is a Cecropia moth caterpillar